Finding the Fourth Proportional to 12,288.79, 16,956.82 and 7,253.22

Step by Step Solution

1. Step 1: Write the proportion equation
   12,288.79 : 16,956.82 = 7,253.22 : x
2. Step 2: Convert to fraction form
   12,288.79/16,956.82 = 7,253.22/x
3. Step 3: Cross multiply
   12,288.79x = 16,956.82 × 7,253.22
4. Step 4: Simplify right side
   12,288.79x = 122,991,545.96
5. Step 5: Solve for x
   x = 122,991,545.96/12,288.79
6. Step 6: Final answer
   x = 10,008.43